What energy change occurs when light is produced by excited lithium atoms?
- Jul 13
- 1 min read
Regents Chemistry June 2026
Question 3
3 What energy change occurs when light is produced by excited lithium atoms?
(1) Energy is released as electrons move from lower to higher energy states.
(2) Energy is released as electrons move from higher to lower energy states.
(3) Energy is absorbed as electrons move from lower to higher energy states.
(4) Energy is absorbed as electrons move from higher to lower energy states.
Solution:
When an electron moves from a higher (excited) energy state to lower energy (ground state), it releases energy in the form of light. Choice 2 is the correct answer.
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